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Removed unused GISLookup._check_geo_field(). 

Unused since a0d166306f.
This commit is contained in:
Sergey Fedoseev 2017-03-25 22:09:34 +05:00 committed by Tim Graham
parent 24d40e7e0c
commit 7fffe3acc2
1 changed files with 0 additions and 42 deletions
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42
django/contrib/gis/db/models/lookups.py
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@ -1,7 +1,5 @@
import re import re
from django.core.exceptions import FieldDoesNotExist
from django.db.models.constants import LOOKUP_SEP
from django.db.models.expressions import Col, Expression from django.db.models.expressions import Col, Expression
from django.db.models.lookups import Lookup, Transform from django.db.models.lookups import Lookup, Transform
from django.db.models.sql.query import Query from django.db.models.sql.query import Query
@ -25,46 +23,6 @@ class GISLookup(Lookup):
super().__init__(*args, **kwargs) super().__init__(*args, **kwargs)
self.template_params = {} self.template_params = {}
@classmethod
def _check_geo_field(cls, opts, lookup):
"""
Check the given lookup with the given model options.
The lookup is a string either specifying the geographic field, e.g.
'point, 'the_geom', or a related lookup on a geographic field like
'address__point'.
Return a BaseSpatialField if one exists according to the given lookup
on the model options, otherwise return None.
"""
from django.contrib.gis.db.models.fields import BaseSpatialField
# This takes into account the situation where the lookup is a
# lookup to a related geographic field, e.g., 'address__point'.
field_list = lookup.split(LOOKUP_SEP)
# Reversing so list operates like a queue of related lookups,
# and popping the top lookup.
field_list.reverse()
fld_name = field_list.pop()
try:
geo_fld = opts.get_field(fld_name)
# If the field list is still around, then it means that the
# lookup was for a geometry field across a relationship --
# thus we keep on getting the related model options and the
# model field associated with the next field in the list
# until there's no more left.
while len(field_list):
opts = geo_fld.remote_field.model._meta
geo_fld = opts.get_field(field_list.pop())
except (FieldDoesNotExist, AttributeError):
return False
# Finally, make sure we got a Geographic field and return.
if isinstance(geo_fld, BaseSpatialField):
return geo_fld
else:
return False
def process_band_indices(self, only_lhs=False): def process_band_indices(self, only_lhs=False):
""" """
Extract the lhs band index from the band transform class and the rhs Extract the lhs band index from the band transform class and the rhs